inertia to action reaction

Inertia

An object at rest stay at rest

Mass

Measurement of inertia.

Equilibrium

Sum of all the forces acting on the object is 0 (ΣF = 0)

Static equilibrium

Applies object that are at rest

Dynamic equilibrium

Applies to object that are moving with constant velocity

Average speed

Describing the motion of an object

Velocity

Magnitude and the direction of a body’s motion is needed.

acceleration

unbalanced force acting on an object

Declaration

A negative acceleration. Speeds decreases through time.

Instantaneous acceleration

shows the object’s acceleration at any point and time

Force

Push or pull acting upon an object

Resultant force

Verctor sum of all the forces acting on an object

Net force

Several force can be combined or added

Applied force

Applied to an object by another object

Normal force

Support force exerted upon an object

Fictional force

Exerted by a surface as an object moves across it

Magnetic force

Force exists between in magnetic

Kinetic friction

opposes the motion of two surface sliding against each other

Law of action-reaction

exerts a reaction force of equal magnitude but opposite direction